Twitter set to go public, but doubts linger as to its profit potential

– total Twitter losses since 2006: $500 million
– total profitable years since inception: none
– number of registered users: 232 million
– maximum number of characters in a tweet: 140
– revenue to be generated from ads in 2013: $650 million
– number of users outside U.S.: 179 million (75%+)
– revenue generated outside U.S.: 26%
– projected initial stock price range: $23 to $25 per share
– amount targeted to raise in IPO: $1 billion